N-WATCH is a management tool designed for N Management Systems to inventory, track, and verify plant-available N in the soil. N Management Systems hedge the risk of N loss by splitting up the N application following the 4Rs of Nutrient Management (Right source, Right rate, Right time, and Right place). It is all about Minimizing environmental impact by Optimizing harvest yield, and Maximizing nutrient utilization. For additional information Click Here As part of the protocol, soil samples need to be gathered from the top 12 inches as well as the 12 to 24 inch depth. In the case of knifed-in or banded nitrogen applications, you will need to obtain 22 samples every 2 to 4 weeks. The AMS Powered Compacted Soil Auger Kit provides the quickest easiest method for collecting these samples.